Last year Rien van Gendt gave the closing remarks, and in preparing for this talk I thought I might just give his talk again because it was so good. It is always a privilege to follow Rien, but somewhat daunting.

To be given the role of the wrap-up speaker at the conference can mean one of two things. The first is that you are trusted not to let the conference end on a down note and in that sense it is quite an honour. The second is that most people will have left by then so it really doesn’t matter what you say. I am not sure which was intended by the organizers, but a lot of people still seem to be here so there might be quite a bit of anxiety among the organizers. I will try not to embarrass them too much.